ML050530188

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Follow-Up Response to Generic Letter 2003-01 Control Room Habitability
ML050530188
Person / Time
Site: Susquehanna  Talen Energy icon.png
Issue date: 02/11/2005
From: Saccone R
Susquehanna
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
GL-03-001, PLA-5861
Download: ML050530188 (5)


Text

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R A.Saccone PPL Susquehanna, LLC

' 1**i8 Vice President - Nuclear Operations 769 Salem Boulevard**

Berwick, PA 18603 Tel. 570.542.3959 Fax 570.542-1504 rasaccone~pplweb.corn l

FEB 1 1 2005 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Stop OP1-17 Washington, DC 20555-0001 SUSQUEHANNA STEAM ELECTRIC STATION FOLLOW-UP RESPONSE TO GENERIC LETTER 2003-01 CONTROL ROOM HABITABILITY Docket Nos. 50-387 PLA-5861 and 50-388

References:

1) Generic Letter 2003-01 "Control Room Habitability, " dated June 12, 2003.
2) PLA-5659, B. L Shriver (PPL) to USNRC Document Control Desk, "Response to Generic Letter 2003-01 Control Room Habitability,"

dated August 11, 2003.

3) PLA-5711, B. L Shriver (PPL) to USNRC Document Control Desk, "Follow-tup Response to Generic Letter 2003-01, Control Room Habitability,"

dated February 3, 2004.

The purpose of this letter is to revise the completion date of two of the commitments provided in Reference 3. Reference 3 provided a detailed description of the actions PPL Susquehanna, LLC (PPL) is committed to take to resolve the concerns identified in Generic Letter (GL) 2003-01 "Control Room Habitability (CRH)." The Attachment to this letter is an updated version of Attachment 2 from that submittal. The Attachment to this letter updates the status of three commitments which have been completed, and reflects the revised completion dates of two commitments.

Subsequent to development of the commitments delineated in Reference 3, PPL initiated plans for an Extended Power Uprate (EPU). To fully resolve the issues identified in the GL and to implement the EPU, conversion to the Alternate Source Term (AST) is required. Efficient use of both PPL and NRC resources in the development and review of the requisite AST analyses and AST license amendment request would be best served by a combined CRH and EPU license amendment request.

Document Control Desk PLA-5861 Thus, PPL is revising the completion date of the following two commitments:

"PPL commits to providing a dose consequence submittal to the NRC, using the methodology described in Regulatory Guide 1.183, Alternative Radiological Source Terms For Evaluating Design Basis Accidents at Nuclear Power Reactors."

and "PPL will perform an assessment of the AP Technical Specification and determine if changes to the Technical specification are required."

Both commitments will be completed by December 30, 2005 rather than June 30, 2005.

These changes will allow sufficient time for completion of one comprehensive AST analysis and AST license amendment request. The alternative to these commitment changes would be to make two AST submittals, one for the CRH GL and one forEPU, within less than six months of each other. This combined submittal constitutes more efficient use of both PPL and NRC resources.

Additionally, the revised commitment completion dates are believed acceptable based on the unfiltered in-leakage flow rates measured during tracer gas testing performed December 2005 that are bounded by preliminary dose consequence analyses previously performed that concluded high unfiltered in-leakage flow rates could be accommodated.

The contents of this letter have been discussed with Mr. Richard Guzman, the SSES NRR Project Manager.

Any questions regarding this information should be directed to Mr. Michael H. Crowthers at (610) 774-7766.

Sincerely, Rob A. Saccone Vice President - Nuclear Operations Attachment - List of Regulatory Commitments copy: NRC Region I Mr. A. J. Blamey, NRC Sr. Resident Inspector Mr. R. V. Guzman, NRC Project Manager Mr. R. Janati, DEP/BRP

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t Attachment to PLA-5861 List of Regulatory Commitments
1 List of Re to Comm.

s List of Regulatory Commitments

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Attachment to PLA-5861 Page I of 2

-Regulatoiy Commitment I --

-Due Date V ;. -

PPL commits to providing a dose consequence submittal to the NRC, using the methodology described in Regulatory Guide 1.183, "Alternative Radiological Source Terms For Evaluating Design Basis Accidents at Nuclear Power Reactors."

PPL will notify NRC if the release of an inventory of hazardous chemicals, transported by railroad, is not imminent.

[or]

If the inventory of hazardous chemicals that are transported by the railway is received by July 30, 2004, PPL will complete the hazardous chemical control room habitability assessment.

PPL will commit to comply with Revision 1 of Regulatory Guide 1.78, "Evaluating the Habitability of a Nuclear Power Plant Control Room During a Postulated Hazardous Chemical Release." This commitment will be incorporated into the FSAR.

PPL commits to perform and transmit the results of an integrated tracer gas test using the standard test method described in American Society for Testing Materials (ASTM) consensus standard E741 "Standard Test Method for Determining Air Change in a Single Zone by Means of a Tracer Gas Dilution," and the results of the corresponding dose consequence analysis.

December 30, 2005 July 30, 2004 The information on railroad shipments has been received. This commitment has been met.

December 31, 2004 A hazardous chemical control room habitability assessment has been -

completed. This commitment has been met.

December 31, 2004 An FSAR change notice has been generated and approved updating the FSAR to reflect SSES commitment to Regulatory Guide 1.78 revision 1. This commitment has been met.

June 30, 2005 PPL completed the tracer gas test on December 10, 2004. A final report has not yet been issued. The results will be transmitted to NRC as originally committed. The preliminary test results were acceptable.

Attachment to PLA-5861 Page 2 of 2 Regulatory Commitment Due-Date PPL will perform an assess'.ment of the AP Technical Specification and determine if changes to the Technical Specification are required.

December 30, 2005